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amitesh kumar
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Question
Normalised Correlation Value after applying DCT
Hello everyone i am applying image normalization technique and DCT technique for embedding and extraction watermark image. he...
plus de 13 ans il y a | 1 réponse | 0
0
réponseQuestion
CDMA based using multiple PN sequences embeded into whole object
hii everyone I am trying to run this watermark embedding code. my cover image size is 512x512, watermark image is 64x64 and...
plus de 13 ans il y a | 1 réponse | 0
0
réponseQuestion
Image extraction from Watermarked image
Hello everyone... I am trying to extract "watermark image" from a watermarked image. For this i am selecting original image o...
plus de 13 ans il y a | 1 réponse | 0
1
réponseQuestion
watermark Embedding in Blocks
hello everyone i want to embed watermark in image of size 512*512 & watermark size is 64*64. first of all i am converting origi...
plus de 13 ans il y a | 3 réponses | 1
3
réponsesError in Image Embedding....
thnku so much *Walter*...got executed prog successfully...i am getting original image, watermark image in perfect manner ..but t...
plus de 13 ans il y a | 0
Error in Image Embedding....
Thnx sir for ur answer. w(m,n)=0; planes{8}=ones(m,n); planes{8}= and(planes{8},w); % Adding the WaterMark ...
plus de 13 ans il y a | 0
Question
Error in Image Embedding....
Hello i am trying to run following code... i=imread('lena.tif'); s=double(i); j=imread('watermark.bmp'); w=double(j); ...
plus de 13 ans il y a | 3 réponses | 0
3
réponsesQuestion
DCT transformation
hello i am trying to apply DCT transformation on image of size 512*512. for applying DCT i use following code I = im2doub...
plus de 13 ans il y a | 1 réponse | 0
1
réponseHow do I fix a "Subscripted assignment dimension mismatch."
%This program decode the watermark from the single embed watermarked image clc c=1; t=1; %To read in the watermarked image ...
plus de 13 ans il y a | 0
Question
How do I fix a "Subscripted assignment dimension mismatch."
clc c=1; t=1; % To read in the watermarked image [watermarked_image cmap]=imread('lsb_image.bmp'); waterma...
plus de 13 ans il y a | 3 réponses | 0
3
réponsesQuestion
how to get low pass filter from image
When I am trying to run the following code, it is giving an error [ ??? Input argument "P" is undefined. Error in ==> idealf...
plus de 13 ans il y a | 1 réponse | 0
1
réponseQuestion
Low-pass filter for image
When I am trying to run the following code, it is giving an error [ ??? Input argument "P" is undefined. Error in ==> i...
plus de 13 ans il y a | 2 réponses | 0
2
réponsesQuestion
Image retrieving
is it possible to get the original image back after applying fft and log polar transformation on image and its inverse .plz rep...
plus de 13 ans il y a | 1 réponse | 0
1
réponseQuestion
Hadamard Transformation
Hello everyone I would like to know that how to generate *Complex Hadamard Transformation Matrix* for N*N matrix . Is it poss...
plus de 13 ans il y a | 1 réponse | 0
1
réponseQuestion
Complex to Imaginary & Vice -Versa
Hello everyone I am applying fft on image which giving me complex value . for getting magnitude i am using " X = abs(Y)" f...
plus de 13 ans il y a | 2 réponses | 0
2
réponsesQuestion
log-polar mapping conversion
I want to change 512*512 pixel gray image into log-polar format. What is the exact procedure to convert it. I tried this with th...
plus de 13 ans il y a | 2 réponses | 0